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From 0f97b7209eed4a428171af6044fe7e0aaf81ee2a Mon Sep 17 00:00:00 2001
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From: Nikita Popov <npopov@redhat.com>
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Date: Thu, 3 Feb 2022 10:34:44 +0100
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Subject: [PATCH] Work around gcc miscompile
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This works around https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104334,
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which miscompiles clang on s390x and ppc64le. The issue is already
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fixed on the gcc side, but including this as a temporary workaround
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to get a working build.
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---
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clang/lib/Sema/DeclSpec.cpp | 5 +++--
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1 file changed, 3 insertions(+), 2 deletions(-)
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diff --git a/clang/lib/Sema/DeclSpec.cpp b/clang/lib/Sema/DeclSpec.cpp
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index d4dc790c008a..77a1e6c32c6f 100644
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--- a/clang/lib/Sema/DeclSpec.cpp
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+++ b/clang/lib/Sema/DeclSpec.cpp
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@@ -1203,8 +1203,9 @@ void DeclSpec::Finish(Sema &S, const PrintingPolicy &Policy) {
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} else if (TypeSpecType == TST_double) {
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// vector long double and vector long long double are never allowed.
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// vector double is OK for Power7 and later, and ZVector.
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- if (getTypeSpecWidth() == TypeSpecifierWidth::Long ||
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- getTypeSpecWidth() == TypeSpecifierWidth::LongLong)
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+ TypeSpecifierWidth TypeSpecWidth = getTypeSpecWidth();
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+ if (TypeSpecWidth == TypeSpecifierWidth::Long ||
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+ TypeSpecWidth == TypeSpecifierWidth::LongLong)
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S.Diag(TSWRange.getBegin(),
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diag::err_invalid_vector_long_double_decl_spec);
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else if (!S.Context.getTargetInfo().hasFeature("vsx") &&
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--
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2.34.1
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